An Ammoniotelic organism

Organism

In biology, an organism is any contiguous living system . In at least some form, all organisms are capable of response to stimuli, reproduction, growth and development, and maintenance of homoeostasis as a stable whole.An organism may either be unicellular or, as in the case of humans, comprise...

 produces soluble ammonia

Ammonia

Ammonia is a compound of nitrogen and hydrogen with the formula . It is a colourless gas with a characteristic pungent odour. Ammonia contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to food and fertilizers. Ammonia, either directly or...

 (in Urea) as a result of deamination

Deamination

Deamination is the removal of an amine group from a molecule. Enzymes which catalyse this reaction are called deaminases.In the human body, deamination takes place primarily in the liver, however glutamate is also deaminated in the kidneys. Deamination is the process by which amino acids are...

. An example of such an organism is a fish

Fish

Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...

. Other methods of deamination include Ureotelic

Ureotelic

Ureotelic refers to an organism that excretes excess nitrogen as urea. Humans can be described as being Ureotelic organisms. Contrary methods include Ammoniotelic and Uricotelic organisms....

 and Uricotelic

Uricotelic

An Uricotelic organism produces uric acid as a result of deamination. An example of such an organisms include birds and insects. Other methods of deamination include Ammoniotelic and Ureotelic....

.

Sources

AMMONIA, UREA AND H+ DISTRIBUTION AND THE
EVOLUTION OF UREOTELISM IN AMPHIBIANS, CHRIS M. WOOD, R. S. 1989 MUNGER.http://jeb.biologists.org/cgi/reprint/144/1/215.pdf

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